Cotton opening machine



June 20, 1933. J. PASHLEY COTTON OPENING MACHINE Filed Dec. 9, 1930Patented June 2%, i933 UNETE STATES PATENT oFFIcE JOHN PASHLEY, OFSTALYBRIDG-E, ENGLAND, ASSIGNOR T TAYLOR, LANG 6c COMPANY, LIMITED, OFSTALYBRIDGE, ENGLAND, A BRITISH COMPANY COTTON OPENING MACHINE.

Application filed December 9, 1930, Serial No. 501,087, and in GreatBritain January 29, 1930.

This invention relates to cotton opening machines of the porcupine type,and has for its object to provide improved means for facilitating theextraction of dust, short 5 fibre and the like from the cotton undertreatment.

My invention comprises a cotton opening machine of the aforesaid typeincluding a beater casing, a revolving cylinder in said 1 casing, heaterarms radiating from said cylinder, cotton feeding means deliveringcotton into the path of said heater arms, grid bars in said casingaround the heater cylinder, a revolving perforated cage between saidgrid bars and the cotton feeding means a section of which cage projectsinto said beater casing through a gap or throat therein adjacent to thesaid feeding means at the side to which cotton is thrown by the heaterarms when they strike the cotton issuing from the feeding means, andmeans applying suction to said revolving cage to extract dust from thecotton. passing over the projecting section of said revolving cage, theheaters 2. stripping the cotton from the cage and carrying it over thegrid bars to the machine outlet.

Referring to the accompanying explanatory drawing Figure l is asectional view showing a porcupine opener of the upstroke type having myinvention applied thereto.

Figure 2 is a similar view, but drawn to a smaller scale of a downstroketype of machine.

The same reference letters in the two views indicate the same or similarparts.

In the machine shown in Figure 1, I provide a revolving cage (2 in aposition where it receives upon its surface the cotton which is thrownupwards by the beater arms 6 upon the cylinder 0 as they pass the feedroller (Z.

The extraction of air through the cage a by the exhaustion duct 6 andfan f, in conjunction with the combing action of the heaters, causesdust and short fibre in the material as it passes over the surface ofthe cage to be drawn into the latter, whilst the cotton falls by gravityoff the cage into the path of the heaters or is stripped from the cageby the heaters by which it is carried forward in the usual manner. Afterpassing the cage a, the cotton passes over the usual grid bars 9 bywhich seeds and the like are extracted from the cotton. As shown in thedrawing the 5 revolving cage a projects into the heater casing itthrough a gap or throat in the latter.

The cage which may have a perforated or wire mesh surface may haveexhaustion applied to its surface as shown, or may he in communicationin a known manner at one or both ends with a fan or exhauster by whichthe dust and short fibre are extracted.

Figure 2 shows my invention applied to a downstroke type of porcupineopener. 65 The action is however similar in principle to that beforedescribed.

I may, if desired, strip the cotton from the cage mechanically, as bymeans of a revolving roller or wiper.

hat I claim is 1. In cotton opening machines of the porcupine type, incombination, a heater casing, a revolving cylinder in said casing,heater arms radiating from said cylinder, cotton feeding meansdelivering cotton into the path of said heater arms, grid bars in saidcasing around the beater cylinder, a revolving perforated cage betweensaid grid bars and the cotton feeding means a section of which cageprojects into said heater casing through a gap or throat thereinadjacent to said feeding means at the side to which cotton is thrown bythe beater arms when they strike the cotton issuing from the feedingmeans, and means applying suction to said revolving cage to extract dustfrom the cotton passing over the projecting section of said revolvingcage, the heaters stripping the cotton from the cage and carrying itover the grid bars to the machine outlet.

2. In cotton opening machines of the porcupine type, in combination, aheater casing,

a revolving cylinder in said casing, heater 1 arms radiating from saidcylinder, cotton feeding means delivering cotton into the path of saidheater arms, grid bars in said casing around the beater cylinder, arevolving perforated cage immediately above the n cotton feeding means asection of which cage projects into said beater casing through a gap orthroat therein between said feeding means and the grid bars, and meansapplying suction to said revolving cage to extract dust from the cottonpassing over the projecting section of said revolving cage, the heatersstripping the cotton from the cage and carrying it over to the grid barsto the machine outlet.

In testimony whereof I have signed my name to this specification.

JOHN PASHLEY.

